Implement for placing and clinching split rivets



Feb. 6, 1923. 1,444,290

U. 0. WESTBY. IMPLEMENT FOR PLACING AND CLINCHING SPLIT RIVETS. FILED MAR. 27, 1922.

atiovmugo Patented ch. 63, 1923..

CORNELIUS 0. VJESTEY, 3F EENVILLE, lli'INl lESGTf-i.

IIVIPLEIREENT FOR PLACING 133) CLIITCHING SIPLI'Z Application filed March 2'2,

T 0 all to 7mm it may concern Be it known that T, CORNELIUS U. Wnsrnv, a citizen of the United States, residing at Renville, in the county of Renville and State of Minnesota, have invented certain new and useful Improvements in Implements for Placing and Clinching Split Rivets; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved implement for placing and clinching split rivets and one object oi the invention is to provide an implement of the character described which will resemble a pair of pliers and which will be so constructed that the rivets may be held in engagement with one jaw of the pliers and then forced through the material which it is desired to rivet and the prongs of the rivet slightly spread so that the pliers may be shifted for a final clinching without the rivet tending to slip out of place.

Another object of the invention is to so construct this device that the rivet may be prevented from accidentally slipping out of engagement with the implement before being forced through the material to be riveted while at the same time permitting the implement to be easily moved out of engagement with the rivet after the rivet is placed.

Another object of the invention is to so construct this implement that the anvil carried by one jaw which serves to spread and clinch the rivet will be set up above the plane of the upper face of the jaw so that the portion of the material through which the rivet passes may be very firmly clamped and the rivet thus caused to be clinched in a very etlicient manner.

This invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a perspective view of the improved rivet placin and clinching device.

Figure 2 isalso a perspective view but looking at the device from a difit'erent angle.

Figure 3 is a sectional view showing the device being made use of to place a rivet.

Figure 4: is a view similar to Fig. 3 showing the device in use for clinching the rivet which has previously been placed, as shown in Fig. 3.

This improved rivet placing and clinch- Serial no.

ing device resembles a ai 01? oliers and is provided with the two jaws l and 2 having handle extensions and which are pivrivet so that the head oi the rivet may be engaged by the taclpuller and the rivet re moved. The jaw l is provided its order end with a head or och 6 and intermediate its length provid 7 which is somewhat longer than the block 6 and provides not only 'neans for clinching; the rivet as will he hereinafter brought out but also provides a stop liii iting the extent to which the block may be moved towards the jaw 2. ii strip 8 which formed of L d L l' sil eflt material is secured against the sire of the outer end portion or the l, and ds along one side of the block shown in S and has its free end portion bent to extend in spaced relation to the end of the block. This free end portion the rivet carrier provided with slot 9 so that the rivet 10 may be engaged by this carrier and held shown in Fig. From an inspection of this figure, it will be readily seen that a ter the rivet has been placed. the jaws may be moved apart siightly and then moved insversely so that the clip or carrier 8 i be mov .1 out of eugae'eiiient with the rivet. Anvil :orining blocks ll and 12' are provided upon the j w 2 beneath the head 6 and clinching arm 7' and each has its upper face shaped to provide a longitudinally extending rib 13 and transversely curved side portions thus providing each the anvils with a centrally disposed spreading rib and cam surfaces so that the pron s of the rivet may be spread and curled longitudinally when inserted and firmly clinched in place.

When this device is in use, the two strips 14 and 15 which are to be riveted together will be placed one upon the other and the rivet 10 will then be put in place with it head between the block 6 anl free end oi the carrier strip 8 and its shank portion which will be in the form of prongs ext siding through the slot 9. This device may heed or the rivet by means of he end port he used for placing rivets in any material tion 6 of the handle at and draw the rivet which it is desre il to secure but it will be out. There has thus been provided a de- :ZSSUIIIGCl that the stripl is it broke bond vice for applying and clinching rivets which 5 and that the strip is a brake bend lining. l he easy to use and very ethcient in 60 After the rivet has been put in place, the eretion. desirec a I 16 may he m brake hand and lining will be positioned irovided to norniehv noid tie handles snort tween the block 6 end anvil 11 end the and permit easy ope etion of the device,

it claim: 1. A rivet placing and clinching device handles 3 and will he moved towards each ii other time to is toward each oth shank the bend and iii? i he put in as shown 13 the shank portion hrouijjh the two etr' s v s '5-1 w A 7 A .1 S1119: J-TTY'S IDOJDJJLQ LOWfii LlS (e110, LEWL .1 i i i i '1. 1 ezici other, one Jew having a placing aiid Ciillfiillllg metal and the other having e piecing head and a clinching heine" ennegeehle with 7 1" sin-"i outing moveinto contact v tor reieeneoiv betwoe 1 1 or the rwiot one 1 tie free ends it t cause it,

:iese pl :6 'noicd a ert to 1 V 4 ne rivets cannot pziss i to pen: s formed in the two strip. The ew the de-rce con and moved transversely so that the 1D st parses out 01? slot 9 device-Will structure of cieini 1 having the 39 1 invil provid d with a rib for 1111 so to airing the end of the ciinching LJLIIE 5 the end portions of prongs form- 7 in engagement with the head of the rive in the shank of? the rivet and concaved faces and the spreel end portions of the prongs at opposite sides of the spreading rib for ipon the onvii 12. The 11 es of he dcdirecting he prongs in flaring curves after 85 vice vill then grasped and t" htly gripped being separated. so that the rivet Will he moved longitudi- 3. The structure of claim 1 nelly with the spreading rib of the anvil clinching anvil provided with a 12 moving: the prongs of the rivet apart and tel in lo s read end the crrved side portions of the anv l cans V .ie shank of ti ing the prong-s to he ciwed on. posihaving conceved feces upon tioned for entering" 1 is which of the rib for causing the pron in the present on curved longitudinoliy one lining. Fnr'het bedded in the ine't-i'ial being 3 and er- Wi clinching. v 9

ciinched in pla e. The structure of claim 1 having the 1 4 l lei in iihice. Thea ien THO'VG torivardiy :1 suliici nt d1s- L since the anvil 12 placing anvil p ovide with means to? hi? "2 th t spreading Clin anvil UlOTlClGEl 1th :zneons to? 100 continin SPlQudlIlg' of the prongs wiring clinching.

The strno having tl e ne oi cleiin 111g rivet recci i 7 until ieeded. Y fhen it is do L sired to remote a rivet, it is simply necesin testimony Wlsery to pry the clinched end portions oi the my hand. pLOngs outwardly by means oi the teoered 55 e116 7 ol the handle 3 and then engage the CORNELIUS O. lVESTBY. 

